## Description
Changes the `fields` override for form builder plugin to use a function
instead so that we can actually override existing fields which currently
will not work.
```ts
//before
fields: [
{
name: 'custom',
type: 'text',
}
]
// current
fields: ({ defaultFields }) => {
return [
...defaultFields,
{
name: 'custom',
type: 'text',
},
]
}
```
## Type of change
- [x] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
7d0e909a30